Muslim Presence in Long Xuyen: Long Xuyen, the capital of An Giang province in the Mekong Delta, has a modest but established Muslim community. The city's Muslim population, primarily of Cham descent, has been part of the region's social fabric for generations. While precise historical records are limited, the community's long-standing presence is reflected in the network of mosques and prayer spaces that serve the faithful in and around the city.

Community Implantation and Prayer Places: The Muslim community in Long Xuyen is supported by several mosques and prayer rooms, many located in the surrounding districts of An Giang province. Notable among these is Jamuil Azhar Mosque, situated in Châu Phong, approximately 48.8 km from the city center. This mosque serves as a central place of worship for the local Muslim population. Other prayer places, such as Masjid Nia'mah, Thánh đường hồi giáo Jamiul Aman, and various suraus (small prayer halls), are found in areas like Châu Phong, Khánh Hòa, and Phú Hiệp, indicating a widespread implantation across the region.

Prayer Time Orientation: For Muslims in Long Xuyen, the five daily prayers—Fajr, Dhuhr, Asr, Maghrib, and Isha—structure the day according to the sun's position. Prayer times vary throughout the year due to seasonal changes in sunrise and sunset, influenced by the city's latitude. Long Xuyen operates on Indochina Time (ICT, UTC+7). The Qibla direction for prayer is determined by the city's coordinates, with Mecca approximately 7,200 km to the west-northwest. The calculation method used for prayer times is typically the Muslim World League or similar standard, ensuring accuracy for the local community.